6280LikesUSGT
08-12-2017, 12:28 PM - Wikipost
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03-05-2013, 06:33 AM
#931
My xpattern d's do that. I tried the pro compound at the Us Nats at Summit, and they are way more consistent. I went back to the D's for the main and failed like a rock in the water. 
I also learned that you can run 26mm vta tires on all 4 corners. as gt rules state. "any treaded 26mm tires with any spoked rim" My buddy ran the 26m vta rubbers on all 4 corners and rocked the show in gt class. So i may try it.
I also learned that you can run 26mm vta tires on all 4 corners. as gt rules state. "any treaded 26mm tires with any spoked rim" My buddy ran the 26m vta rubbers on all 4 corners and rocked the show in gt class. So i may try it.
03-05-2013, 06:43 AM
#932
Tech Regular
iTrader: (4)
No the tires won't work on non VTA rims. Yes you can use the VTA rims and tires as they are similar in diameter. The outer rim is tucked up inside the tire to allow for the sidewall to show like a real Trans Am tire would look. The inner and outer diameters are nearly the same inside the tire so there isn't a lot of flex to the outer sidewall unless your glue comes loose! You actually get more gluing surface due to the sidewall. Be sure to scrape the chrome off the gluing area if you get chrome wheels.
03-05-2013, 07:15 AM
#933
Thanks Steve! Are you ready for the season yet 
?
?
03-05-2013, 07:24 AM
#934
Tech Regular
iTrader: (4)
Working on it. I'm doing a frame up rebuild of my Sprint 2 with an Exotek chassis upgrade for my USGT car. The others are getting a tear down cleaning. I'll be racing spec TC as well as USGT and VTA. Not sure about NasTruck. Three classes keep me hopping as it is! 
I think I'll be a better driver this year. I was starting to get around the track a lot better by the end of the season. I really appreciated your help!
See you in a few weeks!
I think I'll be a better driver this year. I was starting to get around the track a lot better by the end of the season. I really appreciated your help!
See you in a few weeks!
03-05-2013, 08:13 AM
#935
Hey fellas, I've got some motor related questions I could use some help with...
I'm running a TC6 with a Thunder Power 21.5 motor. I started out running a ~3.2 FDR ratio with the motor timing at 30*. The car had loads of top end, but seemed a bit sluggish in the infield. I don't recall exact motor temps, but they were nothing alarming. Maybe 130F or so.
The following weekend I geared it down to a more conservative ~3.7 FDR and kept the motor timing at 30*. Much snappier acceleration, but the top speed was a bit lackluster (as you'd expect). Motor temps were mostly the same.
Last weekend I kept the gearing the same (3.7), but upped the timing to 45*. The car seemed much faster overall. I was pretty pleased with it.....'til I pulled it off the track and saw the 165* temps. And it had that "electronics aren't happy" smell, if you know what I mean. So I dropped the timing down to 35* for the rest of the day. However, the top end was marginal at best. I was barely (and I mean barely) faster than the brushed motor 27T class on the straight!
So here's my thought. I ordered a fan/heatsink for the motor to keep it happy so I can run higher timing. It was much faster in that configuration. But it got me thinking....
Does everyone in these "blinky" type classes always just max out the timing and then gear the motor 'til it runs cool enough? Or do some people run less timing, but taller gearing?
I'm running a TC6 with a Thunder Power 21.5 motor. I started out running a ~3.2 FDR ratio with the motor timing at 30*. The car had loads of top end, but seemed a bit sluggish in the infield. I don't recall exact motor temps, but they were nothing alarming. Maybe 130F or so.
The following weekend I geared it down to a more conservative ~3.7 FDR and kept the motor timing at 30*. Much snappier acceleration, but the top speed was a bit lackluster (as you'd expect). Motor temps were mostly the same.
Last weekend I kept the gearing the same (3.7), but upped the timing to 45*. The car seemed much faster overall. I was pretty pleased with it.....'til I pulled it off the track and saw the 165* temps. And it had that "electronics aren't happy" smell, if you know what I mean. So I dropped the timing down to 35* for the rest of the day. However, the top end was marginal at best. I was barely (and I mean barely) faster than the brushed motor 27T class on the straight!
So here's my thought. I ordered a fan/heatsink for the motor to keep it happy so I can run higher timing. It was much faster in that configuration. But it got me thinking....
Does everyone in these "blinky" type classes always just max out the timing and then gear the motor 'til it runs cool enough? Or do some people run less timing, but taller gearing?
03-05-2013, 03:54 PM
#936
Personally I rarely jack my timing all the way up, I'll usually run a taller gear and less timing, but thats just me. I like to see temps at around 130-140, and with the D3.5 it seems that I have to run it like that. My Novak Ballistic 25.5 reacts well to the same too
03-06-2013, 05:52 AM
#937
Personally I rarely jack my timing all the way up, I'll usually run a taller gear and less timing, but thats just me. I like to see temps at around 130-140, and with the D3.5 it seems that I have to run it like that. My Novak Ballistic 25.5 reacts well to the same too
03-06-2013, 10:35 AM
#938
Tech Master
iTrader: (13)
Hey fellas, I've got some motor related questions I could use some help with...
I'm running a TC6 with a Thunder Power 21.5 motor. I started out running a ~3.2 FDR ratio with the motor timing at 30*. The car had loads of top end, but seemed a bit sluggish in the infield. I don't recall exact motor temps, but they were nothing alarming. Maybe 130F or so.
The following weekend I geared it down to a more conservative ~3.7 FDR and kept the motor timing at 30*. Much snappier acceleration, but the top speed was a bit lackluster (as you'd expect). Motor temps were mostly the same.
Last weekend I kept the gearing the same (3.7), but upped the timing to 45*. The car seemed much faster overall. I was pretty pleased with it.....'til I pulled it off the track and saw the 165* temps. And it had that "electronics aren't happy" smell, if you know what I mean. So I dropped the timing down to 35* for the rest of the day. However, the top end was marginal at best. I was barely (and I mean barely) faster than the brushed motor 27T class on the straight!
So here's my thought. I ordered a fan/heatsink for the motor to keep it happy so I can run higher timing. It was much faster in that configuration. But it got me thinking....
Does everyone in these "blinky" type classes always just max out the timing and then gear the motor 'til it runs cool enough? Or do some people run less timing, but taller gearing?
I'm running a TC6 with a Thunder Power 21.5 motor. I started out running a ~3.2 FDR ratio with the motor timing at 30*. The car had loads of top end, but seemed a bit sluggish in the infield. I don't recall exact motor temps, but they were nothing alarming. Maybe 130F or so.
The following weekend I geared it down to a more conservative ~3.7 FDR and kept the motor timing at 30*. Much snappier acceleration, but the top speed was a bit lackluster (as you'd expect). Motor temps were mostly the same.
Last weekend I kept the gearing the same (3.7), but upped the timing to 45*. The car seemed much faster overall. I was pretty pleased with it.....'til I pulled it off the track and saw the 165* temps. And it had that "electronics aren't happy" smell, if you know what I mean. So I dropped the timing down to 35* for the rest of the day. However, the top end was marginal at best. I was barely (and I mean barely) faster than the brushed motor 27T class on the straight!
So here's my thought. I ordered a fan/heatsink for the motor to keep it happy so I can run higher timing. It was much faster in that configuration. But it got me thinking....
Does everyone in these "blinky" type classes always just max out the timing and then gear the motor 'til it runs cool enough? Or do some people run less timing, but taller gearing?
03-06-2013, 11:51 AM
#940
Oh, really? I was just going on the mfg's documentation that said to "never" exceed 180F. I figured 165 (after pulling it off the track) would mean I'm getting dangerously close to the limit. You don't think it's anything to be concerned about? I'm willing to go back to it, but I have a fan on order and will run it either way (since I need ballast anyway).
03-06-2013, 01:48 PM
#941
My xpattern d's do that. I tried the pro compound at the Us Nats at Summit, and they are way more consistent. I went back to the D's for the main and failed like a rock in the water. I also learned that you can run 26mm vta tires on all 4 corners. as gt rules state. "any treaded 26mm tires with any spoked rim" My buddy ran the 26m vta rubbers on all 4 corners and rocked the show in gt class. So i may try it.
I also learned that you can run 26mm vta tires on all 4 corners. as gt rules state. "any treaded 26mm tires with any spoked rim" My buddy ran the 26m vta rubbers on all 4 corners and rocked the show in gt class. So i may try it.
), of the USGT class at Summit last weekend.
03-06-2013, 02:34 PM
#942
Oh, really? I was just going on the mfg's documentation that said to "never" exceed 180F. I figured 165 (after pulling it off the track) would mean I'm getting dangerously close to the limit. You don't think it's anything to be concerned about? I'm willing to go back to it, but I have a fan on order and will run it either way (since I need ballast anyway).
03-06-2013, 04:50 PM
#943
hey alloyslash, as soon as I can get my hands on a chassis, I will be putting a usgt together and Thrasher said he was game as well. So here soon maybe you will have some competition at one lug.
03-06-2013, 06:18 PM
#945
thanks bro, but I really don't like running other peoples rides. To afraid of tearing their ride up. With my own I am not scared to push it. The motor is about the only other thing I am looking for.